mobbis



R. T. MORRIS.

MELTING APPARATUS.

APPLICATBON FILED NOV-19,1919.

1,379,200, Patented May 24, 1921.

ooooounu 0 UNITED STATES" ROBERT T. MORRIS, OF NEW YORK, N. Y.

MELTING APPARATUS.

Specification of Letters Patent.

Patented May 24, 1921.

Application filed November 19, 1919. Serial No. 339,239.

To all whom it may concern:

Be it known that 1, ROBERT T. Monms a citizen of the United States, anda resident of the city of New York, borough of Manhattan, county andState of New York, have invented an Improvement in Melting Apparatus, ofwhich the following is a specification.

This invention relates to apparatus for melting various substances.

One of the objects of this invention is to provide a simple andpractical melting apparatus of durable and rugged construction. Afurther object is to provide an efiicient melting apparatus in which theheat is most efl'ectivel used and with a minimum loss and in w ich anydesired degree of fluidity of the melted substance may be maintained ina simple manner, with the minimum number of adjustments and with theminimum consumption of heat and therefore of fuel. This invention aimsalso to provide a melting apparatus which will function in the abovemanner irrespective of surroundin temperatures and with a minimuminterfer once from the effects of violent atmospheric or other aircurrents. Still a further object is to provide a melting appliance ofthe above type which will be readily portable and in which the abovefeatures are so embodied that simplicity of construction and efliciencyof operation are maintained. Other objects will be in part obvious andin part pointed out hereinafter.

The invention accordingly consists in the features of construction,combinations of elements, and arrangements of parts which will beexemplified in the construction hereinafter described and the scope ofthe alpplication of which will be indicated in t e appended claim.

he single figure in the drawing is a side elevation showing b way ofexample one of the varied possib e embodiments of this invention.

i ..'l.his invention relates more particularly to the art of graftin andaims to provide an apparatus for me ting wax of the type used in thegrafting of trees, shrubbery, and the like. The illustrative form shownherewith is especiall adaptable for such use but it isto be un erstoodthat various other embodiments and uses may be made of this inventionwithout departing from the scope and s irit thereof.

Reserring to the figure in the drawing there is shown a meltingapparatus comprising a. main frame built up preferably of heavy steelvertically-extending wire membore 10 and a horizontally extendingcircular member 11 to which the vertical steel wires 10 are connected bymeans of the metal cleats 12. The vertical members 10 are conformed toproduce a reduced section and at such section are suitably fastened to aheavy metal ring member 13 for a purpose to be hereinafter described. Attheir lower extremities the vertical members 10 extend in an outwarddirection and at their extreme ends are fastened by bending to a heavycircular member 14 forming a base of suflicient lateral expanse to givethe entire structure great stability. The members 10 at their upperextremities terminate in a circular ring member 15 shown in dotted linesto which they are fastened in a suitable manner such as by riveting orwelding.

A metallic canopy 16 of the general shape as illustrated is mounteddirectly upon the ring member 15 and is fastened thereto by a hingestructure 17 shown in dotted lines and held in its normal position asshown by means of the cooperating latch members 18 and 19. Fastened atpoints diametrically opposite and on the under-side of the ring member15 and extending upwardly are two wire links 20 to which are connectedthe hook-shaped ends 21 of a wire bail 22. The two vertical members 10immediately below the diametrically opposite points at which the hookmembers 20 are fastened to the ring member 15 are shaped in the form ofa ring member 23 extending in a plane perpendicular to the plane of thedrawing and extending in line with the vertical or straight portions ofthe wire bail 22. The right-hand ring member 23 extends in a forwarddirection and the left-hand member 23 extends in the reverse or rearwarddirection and serves the purpose of preventing .the bail 22 fromdropping entirely to the'lower sides of the main frame. Thus, should thebail 22 fall forward its fall will be arrested as soon as the straightportion thereof contacts with the right-hand member 23 to maintain thebail 22 in a substantially horizontal plane. Maintaining the bail insuch a plane at all times holds the circular bail portion wellprotruding from the sides of the main frame so that the bail may bereadily clasped by the hand. The same action takes place should the bailfall to the rear, though in such case the lefthand ring member 23functions as hereinbefore described.

Mounted within and securely fastened to the ring member 13 at thereduced portion of the main frame is a metallic base member 21 having ingeneral a cup shape and provided with a reduced portion 25 into which isfitted a container 26. In the upper end of the container 26 is mounted awick holder 2? provided with a wick 28 and a handle 29 for adjusting theheight of the wick 28 withing the wick holder 27. The. base member 21 isprovided with a series of perforations 30 extending around itscircumference for purposes to be hereinafter mentioned. Extending fromthe upper portion of the base member 24 to the reduced portion of thecanopy iii is a chamber 31 of a general cylindrical construction andhaving its lower and upper ends so shaped as to substantially fit intothe base member 24 and the reduced portion of the canopy 16respectively. The reduced portion of the canopy 16 is provided with aseries of perforations 38 ex tending circumferentially around the upperportion of the canopy, the purposes of which will be hereinafterdescribed.

The upper part of the canopy 16 is provided with an annular sheet metaltop member 32 which serves to receive and support the receptacle 33. Thereceptacle is in general of a cylindrical form having preferably aslight taper in the direction of its bottom and has formed at its upperedges a lip 3+1 which may cooperate with the top member to support thecontainer 33. The receptacle 33 is provided at preferably one point inits upper edge with a spout 35 and with a wire bail member 36 bent intothe shape shown and extending through two holes in the upper edge andunder the lip 34 of the receptacle The top member 32 is provided with. asmall cut-away portion 37 into which the spout 35 is accommodated andwhich serves also a purpose to be hereinafter made clear.

The chamber member 31 is preferably of glass and is replaceable byreason of the hinged fastening of the canopy 16 to the ring member 15.Thus, when the canopy 16 is swung open, the chamber member 31 may belifted out through the ring member 15, whose diameter is greater thanthe exterior diameter of the chamber 31 at its maximum cross-section.

In the operation of this apparatus the container 26 is provided with aliquid fuel preferably of the nature of alcohol and the combustionthereof is started at the wick 28. The air necessary to maintain thiscombustion is admitted through the perforations or apertures 30 and theproducts of combustion pass in an upward direction and eventuallythrough the exit openings 38 in the itself and will therefore be indirect contact with the flame of combustion. In this manner the greatestintensity of heat, which is found in the flame of combustion, is applieddirectly to preferably a small portion of the receptacle 33, thusinsuring that the melting of the contents may proceed with the greatestrapidity and effectiveness.

The chamber 31 substantially surrounding or inclosing the elongatedreceptacle 33 forms thcrebetween an annular path for the hot gases ofcombustion and such products of combustion pass in an upward directionin this annular path and contact with the lateral surface of thecontainer 33 to maintain the contents in the melted or fluid state.

The annular path for the products of combustion provided for by thechamber 31 and the form of the receptacle 33 permits the hot gasesresulting from the combustion to assist in melting the contents of thereceptacle, the melting being started at the lower portion of thereceptacle, where it is in direct contact with the heat of greatestintensity at the flame itself. The contents of the receptacle havingbeen melted into a fluid state it is necessary only to maintain thisfluid condition within the container and therefore it is necessary totransfer to the receptacle and. its contents only a sufiicient amount ofheat to compensate for the heat losses by radiation, convection, or inother ways. It will be obvious, therefore, that this latter amount ofheat is but small and by means of the apparatus of this invention thissmall amount of heat is produced simply by turning down the wick 28 toproduce a smaller amount of gases of combustion and to allow suchreduced amount of products of combustion to circulate upwardly throughthe annular space whereby the transfer of heat necessary to compensatefor the above mentioned losses and to maintain a liquid state are mostefliciently and effectively transferred to the receptacle and itscontents. Thus there results a minimum consumption of fuel.

The contents having been liquefied may be poured from the containereither by lifting the container itself from the heater by means of theball 36 and using the container individually, or the entire apparatusmay be tilted to pour the contents from the container by means of thespout 35. It will he noted that such tilting may be accomplished withoutinterfering with the heating action or without interfering with theoperation of the source of heat itself, and that the liquid state may bemaintained by conserving the heat within the annular chamber ashereinbefore described, in spite of the change of position of the entireapparatus from normal When the apparatus is tilted as a whole to effectpouring of the contents from the receptacle 33, the chamber 31 and itsassociated parts are tilted about an axis passing substantially throughthe points at which the bail 22 is secured to the main frame members. Byreason of the length of the receptacle 33 its effective center ofgravity is low, and particularly so because of its contents. During theconjoint tilting of both chamber 31 and receptacle 33, a relativeswinging between these two parts takes place, the low center of mass ofthe latter being effective to cause such action. There results,therefore a movement of the spout 35 away from the annular supportingmember 32 so that the former clears the latter to permit proper anduninterfered function of the spout.

It will thus be seen that there is provided in this invention anexceedingly simple and durable meltin apparatus of great effectivenessand e ciency of operation, such desirable operation not being disturbedby the actual use of the apparatus in pouring or by violent aircurrents, such as blasts of wind, to which this apparatus is peculiarlysusceptible in its ada tation to the operation of grafting during whichit will be obvious that it must be used out of doors. It will be furthernoted that the several advantages heretofore pointed out, together withothers, have been attained and that the several objects of thisinvention have been effectively achieved.

As various possible embodiments might be made of the above invention,and as various changes might be made in the embodiment above set forth,it is to be understood that all matter herein set forth or shown in theaccompanying drawings is to be interpreted as illustrative and not in alimiting sense.

I claim:

In apparatus of the class described, in combination, a substantiallycylindrical chamber for conducting a heating medium, means secured toand positioned at the lower portion of said chamber for producing saidheating medium, a bail secured to said chamber at two substantiallydiametrically opposite points whereby said chamber may be tiltedsubstantially about an axis passing through said points, a substantiallycylindrical receptacle of lesser diameter than said chamber and of alength slightly less than that of said chamber provided with anoutwardly extending lip and with a spout formed at its upper edgeportion, a substantially annular member secured at the upper part ofsaid chamber having an opening of slightly greater diameter than thediameter of said receptacle for loosely receiving said receptacle andsupporting said receptacle entirely within said chamber by engagementwith. said lip, said annular supporting member being provided with arecess for accommodating said spout at a point in a vertical planesubstantially at right angles to the vertical plane passing through saidtwo diametrically opposite points, whereby the upper edge of saidreceptacle and said spout is substantially flush with said annularsupporting member and whereby, as said chamber is tilted about an axisthrough said two points and in the direction of said recess, saidreceptacle is permitted to swing in its annular supporting member andwithin and relative to said chamber in the direction of the tilting ofsaid chamber to swing said spout away from, and out of flush relationwith, said annular supporting member to permit pouring of the contentsfrom said receptacle.

In testimony whereof, I have signed my name to this specification this11th day of November 1919.

ROBERT T. MORRIS.

